Anaconda smelter, Montana. Anaconda Copper Mining Company. Brakeman se...
Picryl description: Public domain image of an industrial building, factory, workshop, workers, 19th-20th century, free to use, no copyright restrictions.
Fort Knox. Garand rifle. A young soldier of the armored forces, in tra...
Picryl description: Public domain image of military vehicle, automobile, tractor truck, free to use, no copyright restrictions.
A North American employee assembles the landing gear mechanism inside ...
Public domain photograph of California in 1930s, free to use, no copyright restrictions image - Picryl description
School of mechanism - Public domain American sheet music, 1880
From: Music Copyright Deposits, 1870-1885 (Microfilm M 3500) Also available through the Library of Congress Web Site as facsimile page images. (additional physical form)
School of mechanism - Public domain American sheet music, 1880
From: Music Copyright Deposits, 1870-1885 (Microfilm M 3500) Also available through the Library of Congress Web Site as facsimile page images. (additional physical form)
This giant "potato" was supposed to open and reveal an elaborate girls...
Public domain photograph of a car, automobile, free to use, no copyright restrictions image - Picryl description
Close-up showing bracing arrangement on gear cutter. Giant arms holdin...
Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description
School of mechanism - Public domain American sheet music, 1880
From: Music Copyright Deposits, 1870-1885 (Microfilm M 3500) Also available through the Library of Congress Web Site as facsimile page images. (additional physical form)
School of mechanism - Public domain American sheet music, 1880
From: Music Copyright Deposits, 1870-1885 (Microfilm M 3500) Also available through the Library of Congress Web Site as facsimile page images. (additional physical form)
If you happen to be commander of a Navy ship you will be happy to know...
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
Herbert Rudolph James, machinist, Shell Finish Department, National Tu...
Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.